Tom qab pretreatment kom zoo (xws li thawj sedimentation), cov dej khib nyiab nkag mus rau hauv lub aeration tank thiab yog tov nrog activated sludge nyob rau hauv lub tank los tsim ib tug tov tov, thiab yog tag nrho aerated nyob rau hauv lub tank. Cov organic teeb meem nyob rau hauv cov dej khib nyiab yog adsorbed, absorbed thiab oxidized los ntawm activated sludge nyob rau hauv lub aeration tank. , cov kua sib xyaw nkag mus rau hauv lub tank thib ob rau kev sib cais-kua, thiab cov dej huv huv tau tawm mus.
Peb lub ntsiab ntawm cov txheej txheem activated sludge
1. Cov kab mob uas ua rau adsorption thiab oxidative decomposition;
2. Cov organic teeb meem hauv cov dej khib nyiab yog cov khoom siv kho mob thiab cov khoom noj rau cov kab mob;
3. Cov pa oxygen dissolved, tsis muaj cov pa oxygen txaus, cov kab mob aerobic tuaj yeem tsis muaj sia nyob lossis ua oxidative decomposition.
Lub luag haujlwm ntawm aeration
1. Aerobic metabolism ntawm aerobic microorganisms;
2. Aerobic synthesis ntawm facultative microbial enzymes;
3. Cov nyhuv stirring ntawm qhov sib tov.
Aeration txoj kev
1. Blast aeration system;
2. Mechanical aeration ntaus ntawv;
3. Blast plus mechanical aeration system;
4. Lwm yam oxygen-enriched aeration, ntshiab oxygen aeration, thiab lwm yam.